Ae Piston Products Limited

Timothy Dearnley

Simon Gazzard

Pistons and a method for their manufacture are described. The piston has at least one piston ring groove reinforcing member being annular in form and having, in cross-section, upper and lower, generally radially extending face portions and a radially inner, generally axially extending face portion between the two generally radially extending face portions, the generally axially extending face portion being coated with particulate material by a physical vapor deposition technique, to provide a porous adhesion assisting layer.

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Huddersfield, United Kingdom

Timothy Dearnley